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Optimal Design Research of Shear Wall Structure for High-rise Residential Building

Author: ZhouLang
Tutor: LuZheAn
School: Wuhan University of Technology
Course: Structural Engineering
Keywords: Shear wall structure Shear wall thickness Story drift Optimal design
CLC: TU973.16
Type: Master's thesis
Year: 2011
Downloads: 190
Quote: 3
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Abstract

Rise buildings designed not only to meet the requirements of the structural safety feature applies should also be reasonable force structure system as little as possible, the amount of material. Current spreadsheet - verification - to modify the design methods, the design does not necessarily meet the specification requires that all programs in the best (or better), you need to spend a lot of human resources and design time. Smallest or lightest, more importantly, is a resource to achieve optimal allocation of reasonable structure optimization design is an important development of the theory of structural design, not just the pursuit of its ideological connotations. A long history of research on the theory of structural optimization, has been successfully applied in many fields, and developed a number of large finite element software with optimized functions. However, for the research and application of building structure optimization algorithm also relatively plaque lack. On the one hand is to optimize the design of the building structure is a multi-condition, multi-variable, multi-constraint and complex discrete variables in multi-objective optimization problem, and there are a lot of uncertainties (such as load, components, materials and dimensions, analytical models) ; challenges the other hand, building structures complex range of requirements of normative structure, rich in the form of structures and components, which gave a comprehensive and practical architectural structure optimization design algorithm. In recent years, the application of shear wall structure of the high-rise residential widely, more than the number of big investment, so its optimized design is of great significance. This paper mainly carried out the work: a shear wall structure of a high-level the research object modeling and analysis, our structural design software SATWE, examine the dynamic characteristics of the structure, deformation, internal force characteristics and structural measures in order to optimize the structure. Optimize the structure before and after the performance, economy and comparative analysis. The optimal shear wall arranged to determine the conditions under shear wall thickness using finite element analysis software ANSYS optimized. In certain circumstances reinforcement ratio to the amount of structural concrete minimum objective function to the maximum story drift angle constraints established residential shear wall structure optimization model to optimize modal analysis in the optimization process and earthquake acceleration response spectrum analysis. Further research on the basis of the analysis of the above optimization different seismic influence coefficient corresponding the optimal shear wall stiffness. The use of different seismic influence coefficient, zero-order optimization algorithm under the intensity of the the optimal shear wall thickness. With the seismic influence coefficient αmax different, and then get the model under different seismic the optimal shear wall thickness variation value.

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CLC: > Industrial Technology > Building Science > High-rise buildings > Tall Building Structures > Structure type with the system > Frame , shear wall system
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